I just got a DisplayLink unit to use with my new 22" screen running at 1920*1080, I works great but I was kind of disappointed with the lag on the screen, not even the mouse is moving smoothly, but as for what I have managed to read is that there has been a big decrease in performance from 10.6.x to 10.7.x.. I just wanted to hear what the status of getting a performance boost from the driver?
But still loving my new extra screen..